Product Description
MAHLE GS33555 is an OE-quality fuel injector nozzle O-ring / seal kit for the 2008–2010 Ford 6.4L Power Stroke (VIN R). Designed to restore a tight seal at the injector tip/nozzle, this kit helps prevent fuel leaks, rough idle, hard starts, and loss of rail pressure.
- Application: Ford Super Duty 6.4L Power Stroke (2008–2010), VIN R
- Construction: High-temperature fluoroelastomer sealing material
- Meets or exceeds OE specifications
Fitment
- 2008, 2009, 2010 Ford F-250 Super Duty 6.4L Power Stroke (VIN R)
- 2008, 2009, 2010 Ford F-350 Super Duty 6.4L Power Stroke (VIN R)
- 2008, 2009, 2010 Ford F-450 Super Duty 6.4L Power Stroke (VIN R)
- 2008, 2009, 2010 Ford F-550 Super Duty 6.4L Power Stroke (VIN R)
Cross Reference Numbers
- Ford OE: 8C3Z-9229-A
- Navistar/International: 1873425C93
- MAHLE: GS33555
Cross-refs shown for interchange research; verify all dimensions and build dates.
FAQ
Q: Will this fit my 2008–2010 6.4L Power Stroke?
A: Yes. It’s specified for 6.4L VIN R engines in 2008–2010 Super Duty models.
Q: What symptoms indicate I need injector nozzle O-rings?
A: Fuel smell, wetness at injector tips, hard starting, rough idle, or low rail pressure under load.
Q: Do I need any special tools?
A: Follow Ford service procedures. Cleanliness is critical; use proper picks and lube to avoid nicking the seal.
Q: Are these OE-equivalent?
A: Yes—MAHLE seals meet or exceed OEM specs for heat and fuel resistance.
